Fernanda passed away at the age of 99 on 7 December, just a few months shy of her 100th birthday.
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She was the founder of the Italian Entrepreneurs Association in Monaco and the mother of Caroline's late husband, Stefano Casiraghi, who was tragically killed in a powerboat racing accident in 1990.
Caroline remained close with her mother-in-law until her death. The sister of Monaco's head of state, Prince Albert, Caroline has since wed Ernst August, Prince of Hanover, with whom she has a daughter, Princess Alexandra of Hanover.
Businessman Pierre was particularly close to his grandmother, and was able to introduce his young sons, Stefano and Francesco, born in 2017 and 2018 respectively, to their great-grandmother.
Charlotte Casiraghi, the granddaughter of Grace Kelly and Monaco's Prince Rainier has publicly debuted her new boyfriend, the French novelist Nicolas Mathieu